Pre- odd functions. 3 correct possibilities, tried all of them by graphing and more than 3 were odd! where did i go wrong?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

20 points plus brainliest andwer plus my hover hoard im v desperate ! evaluate the polynomial for x=-2 in the equation -3x^3+7x^2-7x-1 (simplify your answer)